APA2606 2.8W Stereo Class-D Audio Power Amplifier and Class AB Headphone Driver (DC Volume Control, UVP, AGC Function) Features • • General Description Operating Voltage: 3.3V-5.5V The APA2606 is a stereo, high efficiency, filter-free Class- • • High Efficiency 85% at PO=2.8W, 4Ω Speaker, VDD=5V D audio amplifier available in SSOP-24 and SSOP-24P packages. Filter-Free Class-D Amplifier Low Shutdown Current The APA2606 provides the precise DC volume control, and the gain range is from -80dB (VVOLUME=0V) to +20dB • - IDD=1µA at VDD=5V 64 Steps Volume Adjustable from -80dB to +20dB (VVOLUME =5V) with 64 steps precise control. It’s easy to get the suitable amplifier’s gain with the 64 steps gain setting. by DC Voltage with Hysteresis AGC (Non-Clip) Function The filter-free architecture eliminates the output filters compared to the traditional Class-D audio amplifier, and Under-Voltage Protection Function Output Power at THD+N=1% BTL Mode - 2.25W at VDD=5V, RL=4Ω - 1.3W at VDD=5V, RL=8Ω SE Mode - 68mW at VDD=5V, RL=32Ω Output Power at THD+N=10% - 2.8W at VDD=5V, RL=4Ω reduces the external component counts and the components high, it could save the PCB space, system cost, • • • • • • • • simplifies the design and the power loss at filter. APA2606 provides an AGC (Non-Clip) function, and this function can low down the dynamic range for large input signal. APA2606 can provide from 20dB to -80dB with 64 steps gain decrease for non-clipping function, and this function can avoid output signal clipping. The APA2606 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off or - 1.6W at VDD=5V, RL=8Ω Less External Components Required shutdown enable process. The APA2606 has build-in over-current and thermal pro- Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL Pin tection that prevent the chip being destroyed by shortcircuit or over-temperature situation. Thermal and Over-Current Protections with AutoRecovery APA2606 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) Pow er Enhanced Packages SSOP-24 and SSOP-24P mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control Lead Free and Green Devices Available (RoHS Compliant) pin signal. APA2606 is capable of driving 2.8W at 5V into 4Ω speaker. The efficiency can archived 85% at R L =4Ω when PO=2.8W at VDD=5V. Applications • • • APA2606 is capable of driving 60mW at 5V into 32Ω headphone. LCD TVs DVD Player Active Speakers ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 1 www.anpec.com.tw APA2606 Simplified Application Circuit HP_ROUTP RINN Stereo Input Signals ROUTP LINN ROUTN VDD APA2606 SE/BTL Signal VOLUME LOUTN LOUTP SE/BTL HP_LOUTP Pin Configuration LOUTP 1 GND 2 GND 3 LOUTN 4 PVDD 5 MUTE 6 VDD 7 LINN 8 UVP 9 VDC 10 VOLUME 11 HP_LOUT 12 APA2606 Top View 24 ROUTP 23 GND 22 GND 21 ROUTN 20 PVDD 19 SD 18 GND 17 RINN 16 AGC 15 SE/BTL 14 BYPASS 13 HP_ROUT SSOP-24 LOUTP 1 GND 2 GND 3 LOUTN 4 PVDD 5 MUTE 6 VDD 7 LINN 8 UVP 9 VDC10 VOLUME 11 HP_LOUT 12 APA2606 APA2606 Top View 24 ROUTP 23 GND 22 GND 21 ROUTN 20 PVDD 19 SD 18 GND 17 RINN 16 AGC 15 SE/BTL 14 BYPASS 13 HP_ROUT SSOP-24P = Thermal Pad (connected the Thermal Pad to GND plane for better dissipation Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 2 www.anpec.com.tw APA2606 Ordering and Marking Information APA2606 Package Code N : SSOP-24 NA : SSOP-24P Operating Ambient Temperature Range I : -40 to 85 oC Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device Assembly Material Handling Code Temperature Range Package Code APA2606 N: APA2606 XXXXX XXXXX - Date Code APA2606 NA: APA2606 XXXXXX XXXXX - Date Code Note : ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight). Absolute Maximum Ratings (Note 1) Parameter Symbol VDD TJ Rating Supply Voltage (VDD, PVDD, VDC to GND) -0.3 to 6 Input Voltage (LINN, RINN to GND) -0.3 to VDD+0.3 Input Voltage (SD, MUTE, AGC, VDC, VOLUME and SE/BTL, BYPASS to GND) -0.3 to VDD+0.3 Maximum Junction Temperature V 150 TSTG Storage Temperature Range TSDR Maximum Soldering Temperature Range, 10 Seconds PD Unit ο -65 to +150 C 260 Power Dissipation Internally Limited W Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Thermal Characteristics Symbol θJA θJC Parameter Typical Value Thermal Resistance -Junction to Ambient (Note 2) SSOP-24 SSOP-24P 96 45 SSOP-24 SSOP-24P 18 11 Unit ο C/W Thermal Resistance -Junction to Case (Note 3) ο C/W Note 2: Please refer to “ Layout Recommendation”, the PGND PIN on the central of the IC should connect to the ground plan, and the PCB is a 2-layer, 5-inch square area with 2oz copper thickness. Note 3: The case temperature is measured at the center of the PGND PIN on the underside of the SSOP-24 package. Recommended Operating Conditions Symbol VDD Parameter Supply Voltage Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 3 Range Unit 3.3 ~ 5.5 V www.anpec.com.tw APA2606 Recommended Operating Conditions (Cont.) Symbol Parameter Range SD, MUTE Unit 2 ~ VDD VIH High Level Threshold Voltage VIL Low Level Threshold Voltage VICM Common Mode Input Voltage 1 ~ VDD-1 TA Ambient Temperature Range -40 ~ 85 TJ Junction Temperature Range -40 ~ 125 RL Speaker Resistance SE/ BTL V 0.8 VDD ~ VDD SD, MUTE 0 ~ 0.8 SE/BTL 0 ~ 1.0 V V ο C Ω 3.5 ~ Electrical Characteristics VDD=5V, VGND=0V, TA= 25οC, Gain=20dB (unless otherwise noted). Symbol VBYPASS Parameter Test Conditions APA2606 Unit Min. Typ. Max. 0.49x VDD 0.5x VDD 0.51x VDD V VMUTE=0V, V/SD=5V, No Load - 5 12 mA mA Bypass Pin Voltage IDD Supply Current (BTL) IDD Supply Current (SE) VMUTE=0V, V/SD=5V, No Load - 2 6 ISD Supply Current VMUTE=0V, V/SD=0V, No Load - - 1 Input Current SD, MUTE, VOLUME - - 1 Oscillator Frequency (VDD=3.3~5.5V, TA= -40~85οC) 400 500 600 kHz Ri Input Resistance (BTL) Gain=20dB 31 36 42 kΩ Ri Input Resistance (SE) Gain=3.5dB 51 59 68 kΩ VDD=5.5V, IL=0.8A - 690 - VDD=4.5V, IL=0.6A - 720 - VDD=3.6V, IL=0.4A - 760 - - 1.2 - Ii FOSC RDSON TSTART-UP Static Drain-Source On-State Resistance Start-Up Time from Shutdown Power MOSFET (P+N) Bypass Capacitor, CB=2.2µF. µA mΩ s Operating Characteristics, BTL Mode Symbol Parameter Test Conditions APA2606 Min. Typ. Max. Unit VDD=5V, TA=25° C, GAIN=6dB PO η THD+N Crosstalk THD+N=1% fin=1kHz RL=4Ω 2.1 2.25 - RL=8Ω 1.0 1.3 - THD+N=10% fin=1kHz RL=4Ω - 2.8 - Output Power Efficiency Total Harmonic Distortion Plus Noise Channel Separation Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 - 1.6 80 85 - RL=4Ω, PO=1.6W - 0.06 0.3 RL=8Ω, PO=0.8W - 0.05 0.2 - -85 - RL=8Ω RL=4Ω, PO=2.8W fin=1kHz PO=0.2W, RL=4Ω, fin=1kHz 4 W % dB www.anpec.com.tw APA2606 Electrical Characteristics (Cont.) VDD=5V, VGND=0V, TA= 25οC, Gain=20dB (unless otherwise noted). Operating Characteristics, BTL Mode (CONT.) Symbol Parameter APA2606 Test Conditions Unit Min. Typ. Max. fin=100Hz - -50 - fin=1kHz - -60 - -75 -78 - VDD=5V, TA=25° C, GAIN=6dB (CONT.) PSRR Power Supply Rejection Ratio RL=4Ω, Input AC-Ground dB SNR Signal to Noise Ratio With A-weighting Filter VO=1Vrms, RL=8Ω AttMute Mute Attenuation fin=1kHz, RL=8Ω, Vin=1Vrms - -85 - Shutdown Attenuation fin=1kHz, RL=8Ω, Vin=1Vrms - -110 - Vn Output Noise With A-weighting Filter - 80 120 µVrms VOS Output Offset Voltage RL=4Ω (Gain=20dB) - 20 30 mV Attshutdown dB dB Operating Characteristics, SE mode Symbol Parameter APA2606 Test Conditions Unit Min. Typ. Max. VDD=5V, TA=25° C, GAIN=3.5dB PO THD+N Crosstalk PSRR Output Power THD+N=1% fin=1kHz RL=32Ω 50 68 - THD+N=10% fin=1kHz RL=32Ω - 88 - RL=32Ω PO=42.5mW - 0.02 - Total Harmonic Distortion Plus Noise fin=1kHz Channel separation Power Supply Rejection Ratio mW PO=6mW, RL=32Ω, fin=1kHz - -90 - fin=100Hz - -60 - fin=1kHz - -70 - RL=32Ω, Input AC-Ground Signal to Noise Ratio With A-weighting Filter VO=1Vrms, RL=32Ω. -85 -88 - Vn Output Noise With A-weighting Filter (Gain=3.5dB) - 20 45 VOS Output Offset Voltage RL=32Ω, (Gain=3.5dB) - 5 10 SNR Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 5 % dB µVrms mV www.anpec.com.tw APA2606 Typical Operating Characteristics Efficiency vs. Output Power 90.0 90.0 80.0 80.0 70.0 70.0 60.0 50.0 40.0 RL=4Ω+33µH fin=1kHz THD+N≦10% AV=20dB AUX-0025 AES-17(20kHz) 30.0 20.0 10.0 0.0 0.0 0.5 1.0 Efficiency vs. Output Power 100.0 Efficiency (%) Efficiency (%) 100.0 60.0 50.0 40.0 RL=8Ω+33µH fin=1kHz THD+N≦10% AV=20dB AUX-0025 AES-17(20kHz) 30.0 20.0 10.0 1.5 2.0 2.5 0.0 0.0 3.0 0.3 Output Power (W) THD+N vs. Output Power 20 VDD=3.3V VDD=3.6V VDD=5V 0.1 VDD=5.0V fin=1kHz RL=4Ω AUX-0025 AES-17(20kHz) SSOP-24 1 THD+N (%) THD+N (%) 1 1.5 THD+N vs. Output Power 20 fin=1kHz RL=4Ω AV=20dB AUX-0025 AES-17(20kHz) SSOP-24 0.6 0.9 1.2 Output Power (W) AV=20dB 0.1 AV=12dB AV=6dB VDD=5.5V 0.01 0.03 0.01 0.5 1 Output Power (W) 2 4 0.06 THD+N vs. Output Power 1 2 3 4 THD+N vs. Output Power 20 fin=1kHz RL=8Ω AV=20dB AUX-0025 AES-17(20kHz) SSOP-24 VDD=3.3V THD+N (%) THD+N (%) 0.5 Output Power (W) 20 1 0.2 VDD=3.6V 0.1 1 VDD=5.0V fin=1kHz RL=8Ω AUX-0025 AES-17(20kHz) SSOP-24 AV=12dB 0.1 AV=20dB VDD=5V VDD=5.5V 0.01 0.06 0.5 0.7 1 AV=6dB 0.01 0.03 2 Output Power (W) Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 0.1 0.3 1 2 Output Power (W) 6 www.anpec.com.tw APA2606 Typical Operating Characteristics (Cont.) THD+N vs. Output Power THD+N vs. Output Power 20 fin=1kHz RL=16Ω AV=3.5dB AES-17(20kHz) SSOP-24 VDD=5.0V fin=1kHz RL=16Ω AES-17(20kHz) SSOP-24 1 THD+N (%) THD+N (%) 20 VDD=3.3V VDD=3.6V VDD=5V 0.1 1 AV=0dB 0.1 AV=3.5dB VDD=5.5V 0.01 0.01 0.03 0.05 0.1 Output Power (W) 0.01 10m 0.2 THD+N vs. Output Power fin=1kHz RL=32Ω AV=3.5dB THD+N (%) VDD=3.6V 0.1 1 0.1 AV=3.5dB VDD=5V VDD=5.5V 0.01 0.02 0.04 0.06 0.08 0.01 0.1 0 0.02 Output Power (W) 1 AV=20dB, VDD=3.3V, Po=0.7W 20 Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 0.1 0.12 AV=20dB 0.1 0.01 AV=20dB, VDD=5.5V, Po=1.95W 200 1k Frequency (Hz) 0.08 VDD=5.0V PO=1.63W RL=4Ω AUX-0025 AES-17(20kHz) SSOP-24 1 0.1 AV=20dB, VDD=5.0V, Po=1.63W 0.06 THD+N vs. Frequency 10 THD+N (%) VDD=3.3/5.0/5.5V PO=0.7/1.63/1.95W RL=4Ω AUX-0025 AES-17(20kHz) SSOP-24 0.04 AV=0dB Output Power (W) THD+N vs. Frequency 10 THD+N (%) 200m VDD=5.0V fin=1kHz RL=32Ω AES-17(20kHz) SSOP-24 AES17(20kHz) SSOP-24 VDD=3.3V 0.001 100m THD+N vs. Output Power 1 0.01 50m 20 20 THD+N (%) 30m Output Power (W) AV=12dB AV=6dB 0.001 10k 20k 7 20 100 1k Frequency (Hz) 10k 20k www.anpec.com.tw APA2606 Typical Operating Characteristics (Cont.) THD+N vs. Frequency THD+N vs. Frequency VDD=3.3/5.0/5.5V PO=0.41/0.96/1.17W RL=8Ω AUX-0025 AES-17(20kHz) SSOP-24 THD+N (%) 1 10 AV=20dB, VDD=3.3V, Po=0.41W 0.1 0.01 AV=20dB, VDD=5.0V, Po=0.96W 0.001 20 100 AV=6dB 0.001 20 10k 20k THD+N vs. Frequency 1 THD+N (%) THD+N (%) 1k Frequency (Hz) 10k 20k THD+N vs. Frequency VDD=3.3/5.0/5.5V PO=20/48/60mW RL=32Ω AES-17(20kHz) SSOP-24 1 AV=3.5dB, VDD=3.3V, Po=20mW 0.1 VDD=5.0V PO=48mW RL=32Ω AES-17(20kHz) SSOP-24 0.1 AV=3.5dB 0.01 0.01 AV=3.5dB, VDD=5.0V, Po=48mW 0.001 20 100 AV=0dB AV=3.5dB, VDD=5.5V, Po=60mW 1k Frequency (Hz) 0.001 20 10k 20k -70 -75 VDD=3.6V, R-ch to L-ch VDD=3.6V, L-ch to R-ch Crosstalk (dB) VDD=3.6/5.0V Vo=1V RL=4Ω AUX-0025 AES-17(20kHz) SSOP-24 -80 -85 -90 VDD=5.0V, L-ch to R-ch -95 10 100 1k Frequency (Hz) Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 1k 10k 20k Crosstalk vs. Frequency Crosstalk vs. Frequency -65 100 Frequency (Hz) -60 Crosstalk (dB) 100 10 10 -100 AV=20dB AV=12dB 0.1 0.01 AV=20dB, VDD=5.5V, Po=1.17W 1k Frequency (Hz) VDD=5.0V PO=0.96W RL=8Ω AUX-0025 AES-17(20kHz) SSOP-24 1 THD+N (%) 10 VDD=5.0V, R-ch to L-ch -60 -65 -70 -75 -80 -85 VDD=5.0V Vo=1.0V RL=32Ω AES-17(20kHz) SSOP-24 -90 -95 -100 -105 -110 -115 -120 10k 20k 8 AV=3.5dB, AV=3.5dB, R-ch to L-ch L-ch to R-ch AV=0dB, L-ch to R-ch AV=0dB, R-ch to L-ch 10 100 1k Frequency (Hz) 10k 20k www.anpec.com.tw APA2606 Typical Operating Characteristics (Cont.) AGC Function Output Power vs. Input AC 1.6 1.4 1.4 1.2 1.2 Output Power (W) Output Power (W) 1.6 AGC Function Output Power vs. Input AC 1 0.8 VDD=5.0V RL=8Ω AES-17(20kHz) SSOP-24 VAGC to GND 0.6 0.4 1 0.8 0.4 0.2 0.2 0.2 0.4 0.6 0.8 1 Input AC (Vrms) 1.2 0.2 1.4 VDD=5.0V RL=4Ω Input AC Ground AUX-0025 AES-17(20kHz) SSOP-24 AV=20dB 200µ 175µ 150µ AV=10dB 125µ AV=6dB 100µ 75µ AV=0dB 50µ 80µ 70µ 60µ 50µ AV=3.5dB 40µ 30µ AV=0dB 20µ AV=-6dB 25µ 10 100 1k Frequency (Hz) 10µ 10k 20k Phase, AV=20dB +12 +10 +8 +6 +4 +2 10 AUX-0025 SSOP-24 Phase, AV=10dB Amplitude,AV=5dB 100 1k 10k Frequency (Hz) Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 100 1k Frequency (Hz) 10k 20k 200k +4 +2 -0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 9 TT Amplitude,AV=3.5dB Amplitude,AV=0dB Phase, AV=-10dB VDD=5.0V RL=16Ω SSOP-24 10 100 1k 10k Frequency (Hz) 200k +350 +325 +300 +275 +250 +225 +200 +175 +150 +125 +100 +75 +50 +25 +0 Phase (Deg) Amplitude,AV=15dB +14 Phase (Deg) Gain (dB) VDD=5.0V RL=4Ω +200 +175 +150 +125 +100 +75 +50 +25 +0 -25 -50 -75 -100 -125 -150 -175 -200 Gain (dB) T +20 10 Frequency Response Frequency Response +22 +16 1.4 VDD=5.0V RL=32Ω Input AC Ground AES-17(20kHz) SSOP-24 90µ 225µ +18 1.2 100µ Output Noise Voltage (Vrms) 250µ 0.4 0.6 0.8 1 Input AC (Vrms) Output Noise Voltage vs. Frequency Output Noise Voltage vs. Frequency 300µ 275µ Output Noise Voltage (Vrms) VDD=5.0V RL=8Ω AES-17(20kHz) SSOP-24 VAGC to GND 0.6 www.anpec.com.tw APA2606 Typical Operating Characteristics (Cont.) Shutdown Attenuation vs. Frequency Mute Attenuation vs. Frequency -60 -60 -70 -70 -80 Left Channel Right Channel VDD=5.0V RL=4Ω AV=20dB VO=1Vrms AUX-0025 AES-17(20kHz) SSOP-24 -90 -100 -110 Gain (dB) Gain (dB) -80 -90 -100 Left Channel -110 -120 -120 -130 VDD=5.0V RL=4Ω AV=20dB VO=1Vrms AUX-0025 AES-17(20kHz) SSOP-24 20 100 1k Frequency (Hz) -130 10k 20k Right Channel 20 PSRR (dB) -30 -40 -50 10 -20 -30 -40 -70 -50 -80 -60 -90 -70 20 Gain Up -10 -60 -100 Gain Down 0 Gain (dB) -20 100 1k 10k -80 20k VDD=5.0V No Load AUX-0025 AES-17(20kHz) 0.0 Frequency (Hz) 2.0 3.0 4.0 DC Volume Voltage (V) 5.0 0.8 0.7 No Load 5 Shutdown Current (µA) Shutdown Current (mA) 1.0 Shutdown Current vs. Supply Voltage Supply Current vs. Supply Voltage 6 4 BTL Mode 3 SE Mode 2 1 0 10k 20k 20 VDD=5.0V RL=8Ω AV=20dB Vrr=0.2Vrms Input floating AUX-0025 AES-17(20kHz) SSOP-24 -10 1k Frequency (Hz) Gain vs. Volume Voltage PSRR vs. Frequency +0 100 0.6 0.5 0.4 0.3 0.2 0.1 0.0 2.0 4.0 0.0 6.0 Voltage (V) Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 10 0.0 2.0 4.0 Voltage (V) 6.0 www.anpec.com.tw APA2606 Typical Operating Characteristics (Cont.) 0.4 Power Dissipation vs. Output Power Power Dissipation (W) Rl=4ohm Rl=8ohm 0.3 0.2 0.1 0.0 0.0 0.5 1.0 1.5 2.0 Output Power (W) Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 2.5 11 www.anpec.com.tw APA2606 Pin Description PIN I/O/P NO. NAME 1 LOUTP FUNCTION O Positive output of left channel power amplifier. 2, 3, 22, 23 PGND P Power amplifier’s ground. 4 LOUTN O Negative output of left channel power amplifier. 5,20 PVDD P Power amplifier’s power supply. 6 MUTE I Mute control signal input. Place entire IC in mute mode when held low cannot float. 7 VDD P Control and bias block’s power supply. 8 LINN I Negative input of left channel power amplifier. 9 UVP I Under-voltage protection input. Floating or pull “H” disable this function. 10 VDC P Volume control block’s power supply. 11 VOLUME I Internal gain setting input. 12 HP_LOUT O Headphone output of left channel power amplifier. 13 HP_ROUT O Headphone output of right channel power amplifier. 14 BYPASS P Bias voltage for power amplifiers. 15 HP/BTL I Output mode control input, high for HP output mode and low for BTL mode cannot float. 16 AGC I Maximum output power setting input. When held high disable AGC function. 17 RINN I Negative input of right channel power amplifier. 18 GND P Control and bias block’s ground. 19 SD I Shutdown mode control input. Place entire IC in shutdown mode when held low cannot float. 21 ROUTN O Negative output of right channel power amplifier. 24 ROUTP O Positive output of right channel power amplifier. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 12 www.anpec.com.tw APA2606 Block Diagram HP_ROUT PGND Gate Drive RINN ROUTP PVDD Gate Drive BYPASS AGC BYPASS AGC Control VDC MUTE VOLUME ROUTN Under-Voltage Detection Circuit Biases & Reference Protection Function GND Volume Control Shutdown Control SD UVP Oscillator VDD Gate Drive LINN LOUTP PVDD Gate Drive LOUTN PGND SE/BTL SE/BTL HP_LOUT Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 13 www.anpec.com.tw APA2606 Typical Application Circuit PVDD CS1 10µF CS2 0.1µF 4Ω 1 LOUTP ROUTP 24 2 PGND PGND 23 3 PGND PGND 22 5 PVDD Vsystem R1 Left Channel Input Signal R3 1µF VDD R2 CS4 1µF APA2606 (Top View) 6 MUTE Ci2 R1 50kΩ CS3 4Ω ROUTN 21 4 LOUTN Mute Control 0.1µF PVDD 20 SD 19 7 VDD GND 18 8 LINN RINN 17 9 UVP AGC 16 SE/BTL 15 10 VDC 11 VOLUME BYPASS 14 12 HP_LOUT HP_ROUT 13 Shutdown Control Ci2 1µF CB 2.2µF VDD Left Channel Input Signal SE/BTL Control CS5 1µF R4 R5 220µF 1kΩ SE/BTL Signal 220µF 1kΩ Headphone Jack VDD=5V RL (Ω) 4 8 R4 (kΩ) R5 (kΩ) PO (W) VAGC (V) 29.4 12.0 2.20 1.450 21.7 12.0 1.70 1.575 30.9 12.0 1.20 1.400 Note 4 :The resistance must use 1%. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 14 www.anpec.com.tw APA2606 DC Volume Control Table Step Gain(BTL) Gain(SE) Low (%) High (%) Recom(%) Low (5V) High(5V) Recom(5V) 1 -80.0 -80.0 0.00 1.86 0.00 0.000 0.093 0.00 2 -41.0 -55.3 2.35 3.37 2.86 0.118 0.169 0.14 3 -35.0 -49.3 3.77 4.91 4.34 0.188 0.246 0.22 4 -29.0 -43.0 5.32 6.45 5.89 0.266 0.322 0.29 5 -23.0 -36.9 6.84 8.00 7.42 0.342 0.400 0.37 6 -17.0 -30.7 8.41 9.54 8.98 0.421 0.477 0.45 7 -11.0 -24.7 9.97 11.10 10.53 0.498 0.555 0.53 8 -9.0 -22.7 11.53 12.65 12.09 0.576 0.633 0.60 9 -7.0 -20.7 13.08 14.19 13.64 0.654 0.710 0.68 10 -5.0 -18.8 14.64 15.73 15.19 0.732 0.787 0.76 11 -3.0 -16.8 16.18 17.26 16.72 0.809 0.863 0.84 12 -2.0 -15.8 17.71 18.84 18.28 0.886 0.942 0.91 13 -1.0 -14.9 19.25 20.37 19.81 0.963 1.019 0.99 14 0.0 -13.9 20.81 21.91 21.36 1.040 1.096 1.07 15 0.4 -13.5 22.36 23.49 22.93 1.118 1.175 1.15 16 0.8 -13.1 23.92 25.07 24.50 1.196 1.253 1.22 17 1.2 -12.8 25.48 26.59 26.03 1.274 1.329 1.30 18 1.6 -12.4 27.04 28.12 27.58 1.352 1.406 1.38 19 2.0 -12.0 28.55 29.67 29.11 1.427 1.484 1.46 20 2.4 -11.6 30.11 31.21 30.66 1.505 1.561 1.53 21 2.8 -11.3 31.64 32.75 32.19 1.582 1.638 1.61 22 3.2 -10.9 33.20 34.31 33.75 1.660 1.715 1.69 23 3.6 -10.5 34.74 35.84 35.29 1.737 1.792 1.76 24 4.0 -10.1 36.29 37.40 36.85 1.815 1.870 1.84 25 4.4 -9.8 37.83 38.98 38.40 1.891 1.949 1.92 26 4.8 -9.4 39.38 40.51 39.95 1.969 2.026 2.00 27 5.2 -9.0 40.94 42.05 41.50 2.047 2.102 2.07 28 5.6 -8.6 42.48 43.61 43.04 2.124 2.180 2.15 29 6.0 -8.3 44.03 45.15 44.59 2.202 2.257 2.23 30 6.4 -7.9 45.57 46.68 46.12 2.279 2.334 2.31 31 6.8 -7.5 47.11 48.24 47.67 2.356 2.412 2.38 32 7.2 -7.2 48.67 49.79 49.23 2.433 2.490 2.46 Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 15 www.anpec.com.tw APA2606 DC Volume Control Table (Cont.) Step Gain(BTL) Gain(SE) Low (%) High (%) Recom(%) Low (5V) High(5V) Recom(5V) 33 7.6 -6.8 50.22 51.35 34 8.0 -6.4 51.76 52.91 50.79 2.511 2.568 2.54 52.33 2.588 2.645 2.62 35 8.4 -6.1 53.31 54.42 53.87 2.666 2.721 2.69 36 8.8 -5.7 37 9.2 -5.4 54.85 55.98 55.42 2.743 2.799 2.77 56.41 57.54 56.97 2.820 2.877 2.85 38 9.6 -5.0 57.95 59.09 58.52 2.897 2.955 2.93 39 10.0 -4.6 59.50 60.65 60.08 2.975 3.033 3.00 40 10.4 -4.3 61.06 62.17 61.61 3.053 3.108 3.08 41 10.8 -3.9 62.60 63.70 63.15 3.130 3.185 3.16 42 11.2 -3.6 64.13 65.26 64.70 3.207 3.263 3.23 43 11.6 -3.2 65.69 66.84 66.26 3.284 3.342 3.31 44 12.0 -2.9 67.25 68.42 67.83 3.362 3.421 3.39 45 12.4 -2.5 68.80 69.95 69.38 3.440 3.498 3.47 46 12.8 -2.2 70.34 71.49 70.91 3.517 3.574 3.55 47 13.2 -1.8 71.90 73.04 72.47 3.595 3.652 3.62 48 13.6 -1.5 73.45 74.60 74.03 3.673 3.730 3.70 49 14.0 -1.2 75.01 76.14 75.57 3.750 3.807 3.78 50 14.4 -0.8 76.56 77.69 77.13 3.828 3.885 3.86 51 14.8 -0.5 78.10 79.25 78.67 3.905 3.963 3.93 52 15.2 -0.2 79.64 80.78 80.21 3.982 4.039 4.01 53 15.6 0.2 81.20 82.32 81.76 4.060 4.116 4.09 54 16.0 0.5 82.75 83.88 83.31 4.138 4.194 4.17 55 16.4 0.8 84.29 85.46 84.87 4.214 4.273 4.24 56 16.8 1.1 85.82 87.00 86.41 4.291 4.350 4.32 57 17.2 1.4 87.36 88.55 87.95 4.368 4.428 4.40 58 17.6 1.7 88.90 90.11 89.50 4.445 4.506 4.48 59 18.0 2.0 90.47 91.65 91.06 4.524 4.582 4.55 60 18.4 2.3 92.01 93.20 92.61 4.601 4.660 4.63 61 18.8 2.6 93.57 94.74 94.15 4.678 4.737 4.71 62 19.2 2.9 95.13 96.32 95.72 4.756 4.816 4.79 63 19.6 3.2 96.66 97.86 97.26 4.833 4.893 4.86 64 20.0 3.5 98.22 100 100.00 4.911 5.000 5.00 Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 16 www.anpec.com.tw APA2606 Function Description Class-D Operation Bypass Voltage Output = 0V The bypass voltage is equal to VDD/2, this voltage is for bias the internal preamplifier stages. The external ca- VOUTP pacitor for this reference (CB) is a critical component and serves several important functions. VOUTN VOUT (VOUTP-VOUTN) DC Volume Control Function The APA2606 has an internal stereo volume control whose setting is the function of the DC voltage applied to the IOUT Output > 0V VOLUME input pin. The APA2606 volume control consists of 64 steps that are individually selected by a variable DC VOUTP voltage level on the VOLUME control pin. The range of the steps controlled by the DC voltage are from +20dB to VOUTN VOUT (VOUTP-VOUTN) -80dB. Each gain step corresponds to a specific input voltage range, as shown in the table. To minimize the IOUT effect of noise on the volume control pin, which can affect the selected gain level, hysteresis and clock delay are Output < 0V VOUTP implemented. The amount of hysteresis corresponds to half of the step width, as shown in the “DC Volume Con- VOUTN trol Table”. For the highest accuracy, the voltage shown in the “rec- VOUT (VOUTP-VOUTN) ommended voltage” column of the table is used to select a desired gain. This recommended voltage is exactly half- IOUT way between the two nearest transitions. The gains level have are 0.4dB/step from 20dB to 0dB; 1dB/step from 0dB to -3dB; 2dB/step from -3dB to -11dB and 6dB/step from -11dB to -41dB and the last step at -80dB as mute Figure1. The APA2606 Output Waveform (Voltage& Current) mode. The APA2606 power amplifier modulation scheme is shown in figure 1; the outputs VOUTP and VOUTN are in phase AGC (Non-Clipping) Function with each other when no input signals. When output > 0V, the duty cycle of VOUTP is greater than 50% and VOUTN is The APA2606 provides the 64 steps non-clipping control, and the range is from 20dB to -80dB. When the output reaches the maximum power setting value, the internal less than 50%; when Output <0V, the duty cycle of VOUTP is less than 50% and VOUTN is greater than 50%. This method Programmable Gain Amplifier (PGA) will decrease the gain for prevent the output waveform clipping. This feature pre- reduces the switching current across the load, and reduces the I 2R losses in the load that improve the vents speaker damage from occurring clipping. Using the AGC pin to set the non-clipping function and limit the amplifier’s efficiency. This modulation scheme has very short pulses across output power. the load, this making the small ripple current and very little loss on the load, and the LC filter can be eliminated in most applications. Added the LC filter can increase the efficiency by filter the ripple current. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 17 www.anpec.com.tw APA2606 Function Description (Cont.) Under-Voltage Protection Table 1: AGC Setting Threshold v.s Output Power AGC Function Output Power VDD~0.45VDD Disable AGC Function External under voltage detection can be used to shutdown the APA2606 before an input device can generate a 8(½ VDD - VAGC )2 RL pop. The shutdown threshold at the UVP pin is 1.2V. The user selects a resistor divider to obtain the shutdown Po = 0.45VDD~0.27VDD 0.27VDD~GND threshold and hysteresis for the specific application. The thresholds can be determined as below: (Max Output Power 4Ω) Po=2.513W (Max Output Power 8Ω) Po= 1.26W VUVP=[1.2-(5.7µAxR3)]x(R1+R2)/R2 Hysteresis=4.6µA x R3 x (R1+R2)/R2 Shutdown Operation In order to reduce power consumption while not in use, With the condition: R3 >> R1// R2 For example, to obtain VUVP=3.7V and 0.9V hysteresis, the APA2606 contains a shutdown function to externally turn off the amplifier bias circuitry. This shutdown feature R1=3kΩ, R2=1kΩ and R3=50kΩ. turns the amplifier off when logic low is placed on the SD pin for APA2606. The trigger point between a logic high Vsystem and logic low level is typically 0.65V. It is the best to switch between ground and the supply voltage VDD to provide R1 3kΩ maximum device performance. By switching the SD pin to a low level, the amplifier enters a low-consumptioncurrent state, IDD for APA2606 is in shutdown mode. On normal operating, APA2606’s SD pin should pull to a high R2 1kΩ level to keep the IC out of the shutdown mode. The SD pin should be tied to a definite voltage to avoid unwanted R3 50kΩ UVP Pin 1.2V 5.7µA state changes. Over-Current Protection Figure 2. Under-Voltage Protection The APA2606 monitors the output current, and when the current exceeds the current-limit threshold, the APA2606 turn-off the output stage to prevent the output device from damages in over-current or short-circuit condition. The IC will turn-on the output buffer after 1ms, but if the overcurrent or short-circuits condition is still remain, it enters the over-current protection again. The situation will circulate until the over-current or short-circuits has be removed. Thermal Protection The over-temperature circuit limits the junction temperature of the APA2606. When the junction temperature exceeds TJ=+150oC, a thermal sensor turns off the output buffer, allowing the devices to cool. The thermal sensor allows the amplifier to start-up after the junction temperature down about 125 oC. The thermal protection is designed with a 25 oC hysteresis to lower the average TJ during continuous thermal overload conditions, increasing lifetime of the IC. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 18 www.anpec.com.tw APA2606 Application Information Square Wave into the Speaker The value of Ci must be considered carefully because it directly affects the low frequency performance of the circuit. Apply the square wave into the speaker may cause the voice coil of speaker jumping out the air gap and defacing Where Ri is 36kΩ (minimum) and the specification calls for a flat bass response down to 50Hz. The equation is the voice coil. However, this depends on the amplitude of square wave is high enough and the bandwidth of speaker reconfigured as below: Ci = is higher than the square wave’s frequency. For 500kHz switching frequency, this is not issued for the speaker 1 2πRifc (2) because the frequency is beyond the audio band and can’t significantly move the voice coil, as cone movement When the input resistance variation is considered, the Ci is 0.08µF, so a value in the range of 0.01µF to 0.022µF is proportional to 1/f2 for frequency out of audio band. would be chosen. A further consideration for this capacitor is the leakage path from the input source through the Input Resistor, Ri 140 input network (Ri + Rf, Ci) to the load. This leakage current creates a DC offset voltage at the input to the amplifier Gain vs. Input Resistance that reduces useful headroom, especially in high gain applications. For this reason, a low-leakage tantalum or 130 Input Resistance (kΩ) 120 ceramic capacitor is the best choice. When polarized capacitors are used, the positive side of the capacitor should 110 100 face the amplifiers’ input in most applications because the DC level of the amplifiers’ inputs are held at VDD/2. 90 80 Please note that it is important to confirm the capacitor polarity in the application. 70 60 50 40 Effective Bypass Capacitor, CB 30 As with any power amplifier, proper supply bypassing is critical for low noise performance and high power supply 20 -40 -35 -30 -25 -20 -15 -10 -5 0 Gain (dB) 5 10 15 20 rejection. The bypass capacitance sffects the startiup time. It is For achieving the 64 steps gain setting, it varies the input determined in the following wquation: resistance network (R i & R f ) of amplifier. The input resistor’s range form smallest to maximum is about six TSTART-UP=0.5(sec/µF) x CB + 0.2(sec) times. Therefore, the input high-pass filter’s low cutoff frequency will change six times from low to high. The (3) The capacitor location on the bypass pin should be as cutoff frequency can be calculated by equation 1. close to the device as possible. The effect of a larger half bypass capacitor is improved PSRR due to increased Input Capacitor, Ci In the typical application, an input capacitor, Ci, is required half-supply stability. The selection of bypass capacitors, especially CB, is thus dependent upon desired PSRR to allow the amplifier to bias the input signal to the proper DC level for optimum operation. In this case, Ci and the requirements, click and pop performance.To avoid the start-up pop noise occurred, choose Ci which is not larger input impedance Ri form a high-pass filter with the corner frequency determined in the following equation: than CB. f C(highpass ) = 1 2πRiCi Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 (1) 19 www.anpec.com.tw APA2606 Application Information (Cont.) Ferrite Bead Selection If the traces form APA2606 to speaker are short, the ferrite bead filters can reduce the high frequency radiated to meet the FCC & CE required. OUTP 36µH A ferrite that has very low impedance at low frequencies and high impedance at high frequencies (above 1 MHz) 1µF is recommended. OUTN Output Low-Pass Filter 36µH 8Ω 1µF If the traces form APA2606 to speaker are short, it doesn’t require output filter for FCC & CE standard. A ferrite bead may be needed if it’s failing the test for FCC Figure 4. LC output filter for 8Ω speaker or CE tested without the LC filter. The figure 3 is the sample for added ferrite bead; the ferrite shows choosing high impedance in high frequency. OUTP 18µH VON 2.2µF Ferrite Bead OUTN 1nF 18µH 4Ω 2.2µF Ferrite Bead VOP 4Ω 1nF Figure 5. LC output filter for 4Ω speaker Figure 4 and 5’s low pass filter cut-off frequency are 25kHz (FC). fC(lowpass) = Figure 3. Ferrite bead output filter 1 (5) 2π LC Figure 4 and 5 are examples for added the LC filter Power-Supply Decoupling Capacitor, CS (Butterworth), it’s recommended for the situation that the trace form amplifier to speaker is too long and needs to The APA2606 is a high-performance CMOS audio amplifier that requires adequate power supply decoupling to eliminate the radiated emission or EMI. ensure the output total harmonic distortion (THD) is as low as possible. Power supply decoupling also prevents the oscillations being caused by long lead length between the amplifier and the speaker. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 20 www.anpec.com.tw APA2606 Application Information (Cont.) Power-Supply Decoupling Capacitor, CS (Cont.) The optimum decoupling is achieved by using two different types of capacitors that target on different types of noise on the power supply leads. For higher frequency transients, spikes, or digital hash on the line, a good low equivalent-series-resistance (ESR) ceramic capacitor, typically 0.1µF placed as close as possible to the device VDD pin for works best. For filtering lower frequency noise signals, a large aluminum electrolytic capacitor of 10µF or greater placed near the audio power amplifier is recommended. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 21 www.anpec.com.tw APA2606 Package Information SSOP-24 D h x 45o E E1 SEE VIEW A c 0.25 A GAUGE PLANE SEATING PLANE A1 A2 b L θ e VIEW A S Y M B O L SSOP-24 (150mil) MILLIMETERS MIN. INCHES MAX. A MIN. MAX. 1.75 0.069 0.004 0.25 0.010 A1 0.10 A2 1.24 b 0.20 0.30 0.008 0.012 c 0.15 0.25 0.006 0.010 D 8.56 8.76 0.337 0.345 E 5.80 6.20 0.228 0.244 E1 3.80 4.00 0.150 0.158 0.050 e 0.049 0.635 BSC 0.025 BSC L 0.40 1.27 0.016 h 0.25 0.50 0.010 0.020 θ 0o 8o 0o 8o Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 22 www.anpec.com.tw APA2606 Package Information SSOP-24P D SEE VIEW A h X 45o E E1 E2 D2 b c 0.25 A1 NX A A2 e L GAUGE PLANE SEATING PLANE θ aaa c VIEW A S Y M B O L A SSOP-24P MILLIMETERS MIN. INCHES MAX. MIN. MAX. 0.004 0.010 1.75 A1 0.10 A2 1.24 b 0.20 0.069 0.25 0.049 0.008 0.30 0.012 c 0.15 0.25 0.006 0.010 D 8.56 8.76 0.337 0.345 D2 3.20 4.00 0.126 0.158 E 5.80 6.20 0.228 0.244 E1 3.80 4.00 0.150 0.158 E2 e 2.00 2.80 0.079 0.110 L 0.40 1.27 0.016 0.050 h 0.25 0.50 0.010 0.020 0o 8o θ aaa 0.635 BSC 0.025 BSC 0o 0.10 8o 0.004 Note : 1. Rerfence to JEDEC MO-137 AE. 2. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall not exceed 6 mil per side. 3. Dimension "E" does not include inter-lead flash or protrusions. Inter-lead flash and protrusions shall not exceed 10 mil per side. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 23 www.anpec.com.tw APA2606 Carrier Tape & Reel Dimensions P0 P2 P1 A B0 W F E1 OD0 K0 A0 A OD1 B B T SECTION A-A SECTION B-B H A d T1 Application SSOP-24 Application SSOP-24P A H T1 330±2.00 50MIN 24.40+2.00 -0.00 P0 P1 P2 4.0±0.10 12.0±0.10 2.0±0.10 A H T1 C d D 330.0±2.00 50 MIN. 16.4+2.00 -0.00 13.0+0.50 -0.20 1.5 MIN. P0 P1 P2 D0 2.0±0.10 1.5+0.10 -0.00 4.0±0.10 8.0±0.10 C 13.0+0.50 -0.20 D0 5+0.10 -0.00 d D W E1 F 1.5MIN 20.2MIN 24.0±0.30 1.75±0.10 11.5±0.10 D1 T A0 B0 K0 13.50±0.10 2.60±0.10 W E1 F 20.2 MIN. 16.0±0.30 1.75±0.10 7.50±0.10 D1 T A0 B0 K0 1.5 MIN. 0.6+0.00 -0.40 6.40±0.20 9.00±0.20 2.10±0.20 1.5MIN 0.60+0.00 8.50±0.10 -0.40 (mm) Devices Per Unit Package Type SSOP-24 SSOP-24P Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 Unit Tape & Reel Tape & Reel Quantity 2500 2500 24 www.anpec.com.tw APA2606 Taping Direction Information SSOP-24 USER DIRECTION OF FEED SSOP-24P USER DIRECTION OF FEED Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 25 www.anpec.com.tw APA2606 Classification Profile Classification Reflow Profiles Profile Feature Sn-Pb Eutectic Assembly Pb-Free Assembly 100 °C 150 °C 60-120 seconds 150 °C 200 °C 60-120 seconds 3 °C/second max. 3 °C/second max. 183 °C 60-150 seconds 217 °C 60-150 seconds See Classification Temp in table 1 See Classification Temp in table 2 Time (tP)** within 5°C of the specified classification temperature (Tc) 20** seconds 30** seconds Average ramp-down rate (Tp to Tsmax) 6 °C/second max. 6 °C/second max. 6 minutes max. 8 minutes max. Preheat & Soak Temperature min (Tsmin) Temperature max (Tsmax) Time (Tsmin to Tsmax) (ts) Average ramp-up rate (Tsmax to TP) Liquidous temperature (TL) Time at liquidous (tL) Peak package body Temperature (Tp)* Time 25°C to peak temperature * Tolerance for peak profile Temperature (Tp) is defined as a supplier minimum and a user maximum. ** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum. Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 26 www.anpec.com.tw APA2606 Classification Reflow Profiles (Cont.) Table 1. SnPb Eutectic Process – Classification Temperatures (Tc) 3 Package Thickness <2.5 mm Volume mm <350 235 °C Volume mm ≥350 220 °C ≥2.5 mm 220 °C 220 °C 3 Table 2. Pb-free Process – Classification Temperatures (Tc) Package Thickness <1.6 mm 1.6 mm – 2.5 mm ≥2.5 mm Volume mm <350 260 °C 260 °C 250 °C 3 Volume mm 350-2000 260 °C 250 °C 245 °C 3 Volume mm >2000 260 °C 245 °C 245 °C 3 Reliability Test Program Test item SOLDERABILITY HOLT PCT TCT HBM MM Latch-Up Method JESD-22, B102 JESD-22, A108 JESD-22, A102 JESD-22, A104 MIL-STD-883-3015.7 JESD-22, A115 JESD 78 Description 5 Sec, 245°C 1000 Hrs, Bias @ Tj=125°C 168 Hrs, 100%RH, 2atm, 121°C 500 Cycles, -65°C~150°C VHBM≧2KV VMM≧200V 10ms, 1tr≧100mA Customer Service Anpec Electronics Corp. Head Office : No.6, Dusing 1st Road, SBIP, Hsin-Chu, Taiwan Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 2F, No. 11, Lane 218, Sec 2 Jhongsing Rd., Sindian City, Taipei County 23146, Taiwan Tel : 886-2-2910-3838 Fax : 886-2-2917-3838 Copyright ANPEC Electronics Corp. Rev. A.6 - MAr., 2013 27 www.anpec.com.tw